shimee



(No Model.) 2 Sheets-Sheet 1.

S. J. SHIMER.

TOOL HOLDER FOR CUTTER HEADS.

No. 387,924. Patented Aug. 14, 1888.

I 7 LL, I 2 ml [1/ i 2 JL W NESSES. INVENTOB,

N. PETERS. PmlLH-Hhdgnphr. Washington, D C.

2 Sheets-Sheet 2.

(No Model.)

S. J. SHIMER.

TOOL HOLDER FOR CUTTER HEADS.

No. 387,924. Patented Aug. 14, 1888.

Urrnn STATES Parana? @i i ifilio SAMUEL J. SHIMER, OF MILTON, PENNSYLVANIA, ASSIGNOR TO SAMUEL J. SHIMER & SONS, OF SAME PLACE.

'TOOL HOLDER FOR CUTTER HEADS.

$PECIFICAIION forming part of Letters Patent No. 387,924, dated August 14:, 1888.

(No model.)

To all whom it may concern.-

Be it known that I, SAMUEL J. SIIIMER, a citizen of the United States of America, residing at Miiton, in the county of Northuniberland and State of Pennsylvania, have invented a new and useful Pool-Holder for Cu tter-Heads, of which the following is a speeiliation.

My invention has relation to improvements in tool-holders for cntterheads; and the object is to provide a tool-holder ol the kind named,

in position. Fig. 2 is a view of the headingtoo]. Fig. 3 is a View of the section of the clamp of the tool-holder which fits in the slot of the cutter-head. Fig. 4 is a View of the clamping-plate. Fig. 5 is a view of the clampingscrew, shown bottom face up. Fig. 6 is a perspective view 01 the parts assembled detached from the cutter-head. Fig. 7 is a trans verse sectional view taken on the line X X of Fig. 1.

Reference hcing had to the drawings, A designatcs a cutter-head having a hole, 1, to receive a vertical spindle, and is formed with T'shaped slots 6 in its respective faces to receive the body-section of the clamping de vices. I have shown the cutterhead as being 40 of the pattern and style of that shown and described in my Letters Patent of the United States of America, No. 319,938, dated June 9, 1885; but it will be perceived that the toolclamping means may with equal adaptability 5 he used with any cuttcrhead having T-shaped slots to take the body-section of the clamp.

13 designates the hody-scction of the toolholding device. This consists of a piece of metal shaped with side flanges, 2, to engage in the grooves c of the slot of the head, and a stem or body part, 3, to fit in the stem of the T-shaped slot I) of the cutter-head. At one end of the h0dy-section,on the outer face,is formed aflange or jaw, hwhich has its ends extended,

as at 5, to set over and on the face of the cuttor-head adjacent to the slots therein, and is dovetailed to receive the dovetail ilange of the tool, as at 6. At the other end of the face of the bodyseetion is a flange, 7, having its ends extended to set over and on the face of the ent- 6o terhead, as at (Z, and having its lower or in not face flared oil for the chunping-plate to set against, as at 8. At a proper location in the stem of the body part is a threaded hole, 9, to take the threaded clamping-bolt.

G designates the clamping-plate, which is formed with flaring edges 10 11, the upper one of which sets on the flared edge of the flange 7 and the lower one rests on the flange of the tool in the cutter-head. The ends of the clamping-plate are extended to reach over and set on the adjacent faces of the cutter-head and give clamping-surface to the plate. The clamping-plate is made to set a little flush in its bed, so as to give more pinch when screwed down on the knife or tool. In the clamping-plate is a plane bolt-hole, 12, made sonicwat elon gated in order that the clamping-plate may auto matieally assume the proper position when the clamping-bolt a is applied, or when a tool of different width from an old one is used.

The clamping-bolt a has a threaded stem and engages the threads in the body-section, and is of such length that it can be screwed down with the under face of its head on the clamp- 8 ing-plate.

D designates the heading tool, having its cutting end shaped to make the desired head in the stock, and formed with flaring baseflanges 13, to set in the dovetail groove formed or by the jaw on the body part of the clamp and the inner edge of the clamping-plate, as shown in Figs. 1 and 6 of the drawings.

The parts areassembled as follows: The section B is arrangedin the slot of the head, then 5 the tool is laid on the dovetail flange, the clamping-plate arranged in position, and the clamping-screw inserted and screwed down. The parts are then in operative aggroupinent.

If at any time it is desired to change the tools or to set them to a certain cut, the clamping-screw may be loosened and the tool removed or the adjustment made.

What I claim is 1. lhe tool-holder herein described, consisting of the body-section B, formed with a stem, 3, having side flanges, 2, to set in a T-shaped slot, an outer projecting dovetailed jaw, 4, on one end, a projecting flange, 7, on the other end, and a threaded bolt-hole, 9, the clampingplate 6, formed with flaring edges 10 11, to set flush in its bed formed by the jaw 4 and flange 7, and an elongated bolt hole, 12, and the clamp ing-screw a, projected through the clampingplate into the threaded hole of the stem to force the clamping-plate on the bit and under the jaw, substantially as described.

2. The combination, with a cutter head formed with T-shaped slots in its faces, of an adjustable tool-holder eonsistingof a bodysection, B, having a stem with side flanges to fit the T-shaped slots of the cutter-head, and having a projecting clamping-jaw, 4, on one end and a projecting flange, 7, on the other end, and a threaded bolt, 9, through its stem, a clamping-plate, 6, formed with flaring edges, and an elongated bolt-hole, 12, a clampingscrew, a, to hold the parts together, and a cutter-tool between the jaw of the part B and the clamping-plate, substantially as described.

In witness whereof I have hereunto set my hand in the presence of two attesting witnesses.

SAMUEL J. SHIMER. Attest:

W. H. BECK, G120. S. SIIIMER. 

